*{
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  font-size: 16px;
  // font-size: 62.5%;  // 1rem = 10px
}

button{
  border: none;
  outline: none;
  background: none;
  cursor: pointer;
}